entrance hole 中文意思是什麼
entrance hole
解釋
進線孔-
When she had made a hole in the entrance she tried to pass through it.
他在洞口上打開了一個洞,就想從里邊鉆出來。 -
Each garage is like a hole with a box shape ( rectangular entrance )
每個泊位像一個箱形的凹洞(矩形入口) 。 -
It provides performance advantages over the conventional perforator with the same diameter and similar charges, its penetration depth is increased by 7 % and entrance hole volume by 10 %
由於採用了復式射孔槍和復式射孔彈結構,使射孔彈和火藥能量得到充分利用,與一般的槍徑及彈型的射孔器比較,其穿孔深度提高7 %以上,孔容提高10 %以上。
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